docs: def result(self):
          """Gets the frozen statistics to serialize by Pickle."""
          try:
              cpu_time = max(0, time.clock() - self._cpu_time_started)
              wall_time = max(0, time.time() - self._wall_time_started)
          except AttributeError:
              cpu_time = wall_time = 0.0
          return self.stats, cpu_time, wall_time